Search Results for author: Bernhard Stimpel

Found 12 papers, 1 papers with code

A comparative study between vision transformers and CNNs in digital pathology

no code implementations1 Jun 2022 Luca Deininger, Bernhard Stimpel, Anil Yuce, Samaneh Abbasi-Sureshjani, Simon Schönenberger, Paolo Ocampo, Konstanty Korski, Fabien Gaire

Due to the sparse availability of annotated whole slide images, we further compared both models pretrained on large amounts of unlabeled whole-slide images using state-of-the-art self-supervised approaches.

Inductive Bias whole slide images

Projection-to-Projection Translation for Hybrid X-ray and Magnetic Resonance Imaging

no code implementations19 Nov 2019 Bernhard Stimpel, Christopher Syben, Tobias Würfl, Katharina Breininger, Philipp Hoelter, Arnd Dörfler, Andreas Maier

Additionally, a weighting scheme in the loss computation that favors high-frequency structures is proposed to focus on the important details and contours in projection imaging.

Image Enhancement Translation

Learning with Known Operators reduces Maximum Training Error Bounds

no code implementations3 Jul 2019 Andreas K. Maier, Christopher Syben, Bernhard Stimpel, Tobias Würfl, Mathis Hoffmann, Frank Schebesch, Weilin Fu, Leonid Mill, Lasse Kling, Silke Christiansen

We assume that our analysis will support further investigation of known operators in other fields of physics, imaging, and signal processing.

Image Reconstruction

User Loss -- A Forced-Choice-Inspired Approach to Train Neural Networks directly by User Interaction

no code implementations24 Jul 2018 Shahab Zarei, Bernhard Stimpel, Christopher Syben, Andreas Maier

This approach opens the way towards implementation of direct user feedback in deep learning and is applicable for a wide range of application.

Image Denoising Medical Image Denoising

Deriving Neural Network Architectures using Precision Learning: Parallel-to-fan beam Conversion

no code implementations9 Jul 2018 Christopher Syben, Bernhard Stimpel, Jonathan Lommen, Tobias Würfl, Arnd Dörfler, Andreas Maier

The results demonstrate that the proposed method is superior to ray-by-ray interpolation and is able to deliver sharper images using the same amount of parallel-beam input projections which is crucial for interventional applications.

MR to X-Ray Projection Image Synthesis

no code implementations20 Oct 2017 Bernhard Stimpel, Christopher Syben, Tobias Würfl, Katrin Mentl, Arnd Dörfler, Andreas Maier

The perceptual-loss showed to be able to preserve most of the high-frequency details in the projection images and, thus, is recommended for the underlying task and similar problems.

Image-to-Image Translation Translation

Precision Learning: Reconstruction Filter Kernel Discretization

no code implementations17 Oct 2017 Christopher Syben, Bernhard Stimpel, Katharina Breininger, Tobias Würfl, Rebecca Fahrig, Arnd Dörfler, Andreas Maier

In this paper, we present substantial evidence that a deep neural network will intrinsically learn the appropriate way to discretize the ideal continuous reconstruction filter.

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